Is it possible to reset buried chests in assassin\'s creed 4 (Assassin's Creed 4: Black Flag)

The topic is the following, I am a 100% fan of playing games on litsuhe in uplay, in order to complete the game at 100, a special is required. I can’t get the cat’s weapon anymore, because of this I had to use the Cheat Engine (Unlocker) table and because of my carelessness I also opened all the drawings to improve the ship (although they need to be found in buried chests) now when I try to dig these chests the game he doesn’t see them (because I unlocked them in the table and improved the ship) The next question is, is it possible to pashamanize in the game files and make the game see it as if I dug up these very buried chests ??? Thanks in advance for your replies!